Ansatsu Skill de Isekai Saikyou: Renkinjutsu to Ansatsujutsu o Kiwameta Ore wa, Sekai o Kage kara Shihai suru

The Strongest in Another World With Assassination Skills ~I, Who Has Mastered Alchemy and Assassination, Dominate the World From Behind~, 暗殺スキルで異世界最強 ~錬金術と暗殺術を極めた俺は、世界を陰から支配する~